* Use custom BSDmakefile instead of luarocks.
It seems that luarocks lacks destdir support.
Changelog:
2013-01-08 Release 2.7.2
* Fixed the use of alternative allocators, and a memory leak.
* Simplify the build system further.
* Change rockspec to build from git now that github no longer
supports downloads.
2012-10-18 Release 2.7.1
* Fixed Lua 5.1 compatibility, broken in 2.7.0.
* Added ability to specify no replacement to gsub with a nil or
false replacement argument.
2012-10-04 Release 2.7.0
* Added support for searching raw memory buffers (e.g. made with
alien).
* Fixed possible invalid code generation in C (thanks, Michael
Tautschnig).
* Generate LuaRock rockspecs for all modules.
* Greatly simplify UNIX build system, relying on LuaRocks.
* Allow POSIX REG_STARTEND to be used on any system supporting it.
* Add a test set for POSIX regex engine (thanks, Enrico Tassi).
* Simplify some code.
* Always use Lua state memory allocator.
2012-04-13 Release 2.6.0
* Added support for Lua 5.2.
2010-12-15 Release 2.5.3
* Bug fix to rex.split.
* Support for new flags in PCRE 8.11.
2010-11-10 Release 2.5.2
* Important bug fix (thanks to Enrico Tassi for the report)
affecting platforms with certain alignment requirements.
* Improved build system for Windows.
* Minor improvements to the manual.
2010-10-04 Release 2.5.1
* Minor improvements and fixes, no changes to library code.
2010-10-03 Release 2.5.0
* Added bindings of the TRE and GNU regex APIs.
* Improved and simplified the build system.
